Improvement in belting



A. SPADONB.

. Belting. I

' o 208,431. PatentedSept. 24,1878.

NJETERS, FHOTO-UTHOGRAPHER, WASHINGTON. D c.

UNITED STATES PATENT OFFICE.

AMADEE SPADON E, OF JERSEY CITY, NEW JERSEY.

IMPROVEMENT IN BELTING.

Specification forming part of Letters Patent No. 208,431, datedSeptember 24, 1878; application filed March 28, 1878.

To all whom it may concern:

Be it known that I, AMADEE SPADONE, of Jersey City, in the county ofHudson and State of New Jersey, have invented a new and usefulImprovement in Endless Belting; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawing, forming a part of thisspecification, in which- Figure 1 represents a perspective View; Fig. 2,a longitudinal section of a belt embodying my invention, and Fig. 3 across-section of the same, showing the intermediate metallic strip.

This invention is especially adapted to belting composed ofrubber-coated cloth which is folded or made up in two or more plies; andthe invention consists in constructing an endless belt containing astrip of tempered steel, composed of a single piece, and arrangedspirally, as shown, and whereby the strength of such belting isincreased, the operation improved, and stretching prevented whensubjected to tensional strain. This strip is constructed of such widthand thickness and coiled at such a pitch, when applied, as to insure thenecessary strength and degree of pliability to allow the belt to yieldand press equally upon pulleys of various diameters, and with eitherplain, concave, or convex faces, the elasticity of the strip tending torestore the belt to its original form.

In the employment of rubbercoated cloth the naked strip may be arrangedbetween the plies and the whole compressed between hot rollers orplates, which will cause the coils to adhere to the inner rubber coatingof the outer plies or the external rubber coating of the inner adjacentplies, and which will effectually maintain the strip in its properposition; and, if preferred, the strip may be covered with anunvulcanized rubber cement, or a textile fabric, or both, and subjectedto the same process of construction 5 but the steel strip should betempered to such a degree of hardness as to withstand the action ofthehot rollers or plates without drawing its temper below the degreenecessary to maintain its essential qualities.

Having thus fully described my invention, I wish it to be understoodthat I do not confine myself to the kind of material described of whichthe belt is composed, nor to the use of tempered steel in theconstruction of the spiral strip, nor to the method of securing saidstrip referred to, although I prefer to employ such substances and toconstruct the same as described; but

What I claim, and desire to secure by Letters Patent, is

An endless belt composed of pliable material and provided with anintermediate strip of metal, (preferably of tempered steel,) arrangedspirally, as shown.

AMADEE SPADONE.

Witnesses:

L. W. SLOAT, 0. W. FORBES.

